7n^2=8-26n

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Solution for 7n^2=8-26n equation:


Simplifying
7n2 = 8 + -26n

Solving
7n2 = 8 + -26n

Solving for variable 'n'.

Reorder the terms:
-8 + 26n + 7n2 = 8 + -26n + -8 + 26n

Reorder the terms:
-8 + 26n + 7n2 = 8 + -8 + -26n + 26n

Combine like terms: 8 + -8 = 0
-8 + 26n + 7n2 = 0 + -26n + 26n
-8 + 26n + 7n2 = -26n + 26n

Combine like terms: -26n + 26n = 0
-8 + 26n + 7n2 = 0

Factor a trinomial.
(-4 + -1n)(2 + -7n) = 0

Subproblem 1

Set the factor '(-4 + -1n)' equal to zero and attempt to solve: Simplifying -4 + -1n = 0 Solving -4 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1n = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1n = 0 + 4 -1n = 0 + 4 Combine like terms: 0 + 4 = 4 -1n = 4 Divide each side by '-1'. n = -4 Simplifying n = -4

Subproblem 2

Set the factor '(2 + -7n)' equal to zero and attempt to solve: Simplifying 2 + -7n = 0 Solving 2 + -7n = 0 Move all terms containing n to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -7n = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -7n = 0 + -2 -7n = 0 + -2 Combine like terms: 0 + -2 = -2 -7n = -2 Divide each side by '-7'. n = 0.2857142857 Simplifying n = 0.2857142857

Solution

n = {-4, 0.2857142857}

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